The moat and walls of ancient Jericho
Reconstructions   (click and hold down)

The initial stages of the Jericho defence system seen from the outside. Wall #1 was around 4 meters high and built on the bedrock. Click/hold - Around 400 years later #2
was placed 3 meters further out. It was at least 6 meters in height. Then a 3 meter deep moat was added outside making it circa 9 meters from its bottom to the wall summit.